18 |
use IO::Socket::INET; |
use IO::Socket::INET; |
19 |
use File::Slurp; |
use File::Slurp; |
20 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
|
use Net::Ping; |
|
21 |
|
|
22 |
use lib '..'; |
use lib '..'; |
23 |
use Net::DHCP::Packet; |
use Net::DHCP::Packet; |
34 |
|
|
35 |
warn "server ip $server::ip range: $server::ip_from - $server::ip_to\n"; |
warn "server ip $server::ip range: $server::ip_from - $server::ip_to\n"; |
36 |
|
|
37 |
my $addr = $server::ip_from; |
use client; |
38 |
|
|
39 |
sub client_ip { |
sub client_ip { |
40 |
my ( $mac ) = @_; |
my ( $mac ) = @_; |
42 |
my $conf = $server::conf; |
my $conf = $server::conf; |
43 |
mkdir $conf unless -e $conf; |
mkdir $conf unless -e $conf; |
44 |
|
|
45 |
if ( -e "$conf/mac/$mac" ) { |
my $ip; |
46 |
my $ip = read_file "$conf/mac/$mac"; |
|
47 |
|
if ( $ip = client::ip_from_mac( $mac ) ) { |
48 |
print "RENEW $mac $ip\n"; |
print "RENEW $mac $ip\n"; |
49 |
return $ip; |
return $ip; |
50 |
|
} else { |
51 |
|
$ip = client::next_ip; |
52 |
|
print "NEW $mac $ip\n"; |
53 |
|
symlink "$conf/ip/$ip", "$conf/mac/$mac"; |
54 |
} |
} |
55 |
|
|
|
my $p = Net::Ping->new; |
|
|
|
|
|
my $prefix = $server::ip; |
|
|
$prefix =~ s{\.\d+$}{.}; |
|
|
my $ip = $prefix . $addr; |
|
|
|
|
|
while ( -e "$conf/ip/$ip" || $p->ping( $ip ) ) { |
|
|
$ip = $prefix . $addr++; |
|
|
die "all addresses allocated!" if $addr == $server::ip_to; |
|
|
} |
|
|
|
|
|
write_file "$conf/mac/$mac", $ip; |
|
|
|
|
56 |
my $ip_path = "$conf/ip/$ip"; |
my $ip_path = "$conf/ip/$ip"; |
57 |
mkdir $ip_path unless -e $ip_path; |
mkdir $ip_path unless -e $ip_path; |
58 |
|
|
60 |
warn "$mac IP changed from ", readlink "$ip_path/mac", " to $ip"; |
warn "$mac IP changed from ", readlink "$ip_path/mac", " to $ip"; |
61 |
unlink "$ip_path/mac"; |
unlink "$ip_path/mac"; |
62 |
}; |
}; |
|
symlink "$conf/mac/$mac", "$ip_path/mac"; |
|
63 |
|
|
64 |
print "$mac NEW $ip\n"; |
symlink "$conf/mac/$mac", "$ip_path/mac"; |
65 |
|
|
66 |
return $ip; |
return $ip; |
67 |
} |
} |
69 |
use log; |
use log; |
70 |
use config; |
use config; |
71 |
use pxelinux; |
use pxelinux; |
72 |
|
use client; |
73 |
|
|
74 |
our $file; |
our $file; |
75 |
our $transaction = 0; # FIXME predictible transaction numbers |
our $transaction = 0; # FIXME predictible transaction numbers |
120 |
Giaddr => $dhcp->giaddr(), |
Giaddr => $dhcp->giaddr(), |
121 |
Chaddr => $dhcp->chaddr(), |
Chaddr => $dhcp->chaddr(), |
122 |
File => $file, |
File => $file, |
123 |
|
DHO_DHCP_SERVER_IDENTIFIER() => $server::ip, # busybox/udhcpc needs it but doesn't request |
124 |
}; |
}; |
125 |
|
|
126 |
|
my $options = { |
127 |
|
DHO_SUBNET_MASK() => $server::netmask, |
128 |
|
DHO_ROUTERS() => $server::ip, |
129 |
|
DHO_DOMAIN_NAME() => $server::domain_name, |
130 |
|
DHO_NAME_SERVERS() => $server::ip, |
131 |
|
DHO_DOMAIN_NAME_SERVERS() => $server::ip, |
132 |
|
DHO_HOST_NAME() => client::conf( $ip, 'hostname' ), |
133 |
|
DHO_BROADCAST_ADDRESS() => $server::bcast, |
134 |
|
# DHO_NTP_SERVERS() => '', |
135 |
|
}; |
136 |
|
|
137 |
|
my @requested = split(/\s/, $dhcp->getOptionValue(DHO_DHCP_PARAMETER_REQUEST_LIST)); |
138 |
|
warn "options ",dump( $options ), ' requested: ',dump( @requested ) if $debug; |
139 |
|
|
140 |
|
my @missing; |
141 |
|
foreach ( @requested ) { |
142 |
|
if ( defined $options->{$_} ) { |
143 |
|
$packet->{$_} = $options->{$_}; |
144 |
|
} else { |
145 |
|
push @missing, $_; |
146 |
|
} |
147 |
|
} |
148 |
|
|
149 |
|
warn "W: options requested but missing: ",dump( @missing ),$/; |
150 |
|
|
151 |
foreach my $opt ( 'magic', 'config_file', 'path_prefix', 'reboot_time' ) { |
foreach my $opt ( 'magic', 'config_file', 'path_prefix', 'reboot_time' ) { |
152 |
my $DH0 = eval 'DHO_PXELINUX_' . uc $opt; |
my $DH0 = eval 'DHO_PXELINUX_' . uc $opt; |
153 |
warn "DH0: $@" if $@; |
warn "DH0: $@" if $@; |
154 |
my $v = eval "\$pxelinux::$opt"; |
my $v = eval "\$pxelinux::$opt"; |
155 |
warn "v: $@" if $@; |
warn "v: $@" if $@; |
156 |
next unless defined $v; |
next unless defined $v; |
157 |
warn "pxelinux dhcp option $opt = $DH0 = $v"; |
warn "pxelinux dhcp option $opt = $DH0 = $v\n" if $debug; |
158 |
$packet->{ $DH0 } = $v; |
$packet->{ $DH0 } = $v; |
159 |
} |
} |
160 |
|
|
170 |
if ( $ip eq $requested_ip ) { |
if ( $ip eq $requested_ip ) { |
171 |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPACK(); |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPACK(); |
172 |
$packet->{DHO_DHCP_LEASE_TIME()} = 5 * 60; # 5 min |
$packet->{DHO_DHCP_LEASE_TIME()} = 5 * 60; # 5 min |
|
# $packet->{DHO_DHCP_SERVER_IDENTIFIER()} = $server::ip; # FIXME |
|
|
$packet->{DHO_SUBNET_MASK()} = '255.255.255.0'; |
|
|
$packet->{DHO_ROUTERS()} = $server::ip; |
|
|
$packet->{DHO_DOMAIN_NAME()} = 'pxelator.lan'; |
|
|
$packet->{DHO_NAME_SERVERS()} = $server::ip; |
|
173 |
# $packet->{DHO_ROOT_PATH()} = '/exports/foobar'; |
# $packet->{DHO_ROOT_PATH()} = '/exports/foobar'; |
174 |
} else { |
} else { |
175 |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPNAK(); |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPNAK(); |
183 |
|
|
184 |
warn ">> $mac == $ip server: $server::ip", $file ? " file: $file\n" : "\n" if $debug; |
warn ">> $mac == $ip server: $server::ip", $file ? " file: $file\n" : "\n" if $debug; |
185 |
|
|
|
warn "## created packet ", dump( $packet ); |
|
|
|
|
186 |
$packet = new Net::DHCP::Packet( %$packet ); |
$packet = new Net::DHCP::Packet( %$packet ); |
187 |
warn "send ",$packet->toString() if $debug; |
warn "send ",$packet->toString() if $debug; |
188 |
|
|